(19)

(11)

EP 4 295 329 A1

(12)

(43) Date of publication: 27.12.2023 Bulletin 2023/52 (21) Application number: 22704769.3 (22) Date of filing: 10.02.2022

(51) International Patent Classification (IPC):  G07C 9/00(2020.01) (52) Cooperative Patent Classification (CPC): G07C 2209/63; G07C 2209/06; G07C 2009/00555; G07C 2009/00412; G07C 9/00309 (86) International application number: PCT/EP2022/053255 (87) International publication number: WO 2022/175158 (25.08.2022 Gazette 2022/34)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 22.02.2021 EP 21158522 (71) Applicant: Nagravision Sarl 1033 Cheseaux-sur-Lausanne (CH)	(72) Inventor: ZHAO, Yishan 1033 Cheseaux-sur-Lausanne (CH) (74) Representative: Novagraaf International SA  Chemin de l'Echo 3 1213 Onex, Geneva 1213 Onex, Geneva (CH)